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China Professional Ce 35hpce 35HP Compact Mini Tractor with Tractor Spare Parts Available for 15 Years Compact Mini Tractor with Tractor Spare Parts Available for 15 Years with Hot selling

Product Description

CE  35hp  compact mini tractor  with  tractor spare parts available for 15 years.

1. Basic Technical Data

Model No TY350-D TY354-D
Type 4x2WD 4x4WD
Overall dimension Length(mm) 3070 3030
Width(mm) 1290 1290
height(mm) 12  
Contact: Ms Julia Li


Calculating the Deflection of a Worm Shaft

In this article, we’ll discuss how to calculate the deflection of a worm gear’s worm shaft. We’ll also discuss the characteristics of a worm gear, including its tooth forces. And we’ll cover the important characteristics of a worm gear. Read on to learn more! Here are some things to consider before purchasing a worm gear. We hope you enjoy learning! After reading this article, you’ll be well-equipped to choose a worm gear to match your needs.
worm shaft

Calculation of worm shaft deflection

The main goal of the calculations is to determine the deflection of a worm. Worms are used to turn gears and mechanical devices. This type of transmission uses a worm. The worm diameter and the number of teeth are inputted into the calculation gradually. Then, a table with proper solutions is shown on the screen. After completing the table, you can then move on to the main calculation. You can change the strength parameters as well.
The maximum worm shaft deflection is calculated using the finite element method (FEM). The model has many parameters, including the size of the elements and boundary conditions. The results from these simulations are compared to the corresponding analytical values to calculate the maximum deflection. The result is a table that displays the maximum worm shaft deflection. The tables can be downloaded below. You can also find more information about the different deflection formulas and their applications.
The calculation method used by DIN EN 10084 is based on the hardened cemented worm of 16MnCr5. Then, you can use DIN EN 10084 (CuSn12Ni2-C-GZ) and DIN EN 1982 (CuAl10Fe5Ne5-C-GZ). Then, you can enter the worm face width, either manually or using the auto-suggest option.
Common methods for the calculation of worm shaft deflection provide a good approximation of deflection but do not account for geometric modifications on the worm. While Norgauer’s 2021 approach addresses these issues, it fails to account for the helical winding of the worm teeth and overestimates the stiffening effect of gearing. More sophisticated approaches are required for the efficient design of thin worm shafts.
Worm gears have a low noise and vibration compared to other types of mechanical devices. However, worm gears are often limited by the amount of wear that occurs on the softer worm wheel. Worm shaft deflection is a significant influencing factor for noise and wear. The calculation method for worm gear deflection is available in ISO/TR 14521, DIN 3996, and AGMA 6022.
The worm gear can be designed with a precise transmission ratio. The calculation involves dividing the transmission ratio between more stages in a gearbox. Power transmission input parameters affect the gearing properties, as well as the material of the worm/gear. To achieve a better efficiency, the worm/gear material should match the conditions that are to be experienced. The worm gear can be a self-locking transmission.
The worm gearbox contains several machine elements. The main contributors to the total power loss are the axial loads and bearing losses on the worm shaft. Hence, different bearing configurations are studied. One type includes locating/non-locating bearing arrangements. The other is tapered roller bearings. The worm gear drives are considered when locating versus non-locating bearings. The analysis of worm gear drives is also an investigation of the X-arrangement and four-point contact bearings.
worm shaft

Influence of tooth forces on bending stiffness of a worm gear

The bending stiffness of a worm gear is dependent on tooth forces. Tooth forces increase as the power density increases, but this also leads to increased worm shaft deflection. The resulting deflection can affect efficiency, wear load capacity, and NVH behavior. Continuous improvements in bronze materials, lubricants, and manufacturing quality have enabled worm gear manufacturers to produce increasingly high power densities.
Standardized calculation methods take into account the supporting effect of the toothing on the worm shaft. However, overhung worm gears are not included in the calculation. In addition, the toothing area is not taken into account unless the shaft is designed next to the worm gear. Similarly, the root diameter is treated as the equivalent bending diameter, but this ignores the supporting effect of the worm toothing.
A generalized formula is provided to estimate the STE contribution to vibratory excitation. The results are applicable to any gear with a meshing pattern. It is recommended that engineers test different meshing methods to obtain more accurate results. One way to test tooth-meshing surfaces is to use a finite element stress and mesh subprogram. This software will measure tooth-bending stresses under dynamic loads.
The effect of tooth-brushing and lubricant on bending stiffness can be achieved by increasing the pressure angle of the worm pair. This can reduce tooth bending stresses in the worm gear. A further method is to add a load-loaded tooth-contact analysis (CCTA). This is also used to analyze mismatched ZC1 worm drive. The results obtained with the technique have been widely applied to various types of gearing.
In this study, we found that the ring gear’s bending stiffness is highly influenced by the teeth. The chamfered root of the ring gear is larger than the slot width. Thus, the ring gear’s bending stiffness varies with its tooth width, which increases with the ring wall thickness. Furthermore, a variation in the ring wall thickness of the worm gear causes a greater deviation from the design specification.
To understand the impact of the teeth on the bending stiffness of a worm gear, it is important to know the root shape. Involute teeth are susceptible to bending stress and can break under extreme conditions. A tooth-breakage analysis can control this by determining the root shape and the bending stiffness. The optimization of the root shape directly on the final gear minimizes the bending stress in the involute teeth.
The influence of tooth forces on the bending stiffness of a worm gear was investigated using the CZPT Spiral Bevel Gear Test Facility. In this study, multiple teeth of a spiral bevel pinion were instrumented with strain gages and tested at speeds ranging from static to 14400 RPM. The tests were performed with power levels as high as 540 kW. The results obtained were compared with the analysis of a three-dimensional finite element model.
worm shaft

Characteristics of worm gears

Worm gears are unique types of gears. They feature a variety of characteristics and applications. This article will examine the characteristics and benefits of worm gears. Then, we’ll examine the common applications of worm gears. Let’s take a look! Before we dive in to worm gears, let’s review their capabilities. Hopefully, you’ll see how versatile these gears are.
A worm gear can achieve massive reduction ratios with little effort. By adding circumference to the wheel, the worm can greatly increase its torque and decrease its speed. Conventional gearsets require multiple reductions to achieve the same reduction ratio. Worm gears have fewer moving parts, so there are fewer places for failure. However, they can’t reverse the direction of power. This is because the friction between the worm and wheel makes it impossible to move the worm backwards.
Worm gears are widely used in elevators, hoists, and lifts. They are particularly useful in applications where stopping speed is critical. They can be incorporated with smaller brakes to ensure safety, but shouldn’t be relied upon as a primary braking system. Generally, they are self-locking, so they are a good choice for many applications. They also have many benefits, including increased efficiency and safety.
Worm gears are designed to achieve a specific reduction ratio. They are typically arranged between the input and output shafts of a motor and a load. The 2 shafts are often positioned at an angle that ensures proper alignment. Worm gear gears have a center spacing of a frame size. The center spacing of the gear and worm shaft determines the axial pitch. For instance, if the gearsets are set at a radial distance, a smaller outer diameter is necessary.
Worm gears’ sliding contact reduces efficiency. But it also ensures quiet operation. The sliding action limits the efficiency of worm gears to 30% to 50%. A few techniques are introduced herein to minimize friction and to produce good entrance and exit gaps. You’ll soon see why they’re such a versatile choice for your needs! So, if you’re considering purchasing a worm gear, make sure you read this article to learn more about its characteristics!
An embodiment of a worm gear is described in FIGS. 19 and 20. An alternate embodiment of the system uses a single motor and a single worm 153. The worm 153 turns a gear which drives an arm 152. The arm 152, in turn, moves the lens/mirr assembly 10 by varying the elevation angle. The motor control unit 114 then tracks the elevation angle of the lens/mirr assembly 10 in relation to the reference position.
The worm wheel and worm are both made of metal. However, the brass worm and wheel are made of brass, which is a yellow metal. Their lubricant selections are more flexible, but they’re limited by additive restrictions due to their yellow metal. Plastic on metal worm gears are generally found in light load applications. The lubricant used depends on the type of plastic, as many types of plastics react to hydrocarbons found in regular lubricant. For this reason, you need a non-reactive lubricant.

China Professional Ce 35hpce 35HP Compact Mini Tractor with Tractor Spare Parts Available for 15 Years Compact Mini Tractor with Tractor Spare Parts Available for 15 Years     with Hot sellingChina Professional Ce 35hpce 35HP Compact Mini Tractor with Tractor Spare Parts Available for 15 Years Compact Mini Tractor with Tractor Spare Parts Available for 15 Years     with Hot selling

China high quality Guoan Agricultural Machinery Mini Baler Parts Mini Round Hay Baler Machine for Tractor Use with Free Design Custom

Product Description

Guoan Agricultural Machinery Mini Baler Parts Mini Round Hay Baler Machine For Tractor Use


Product Decription:

1. The mini round baler machine is mainly used to collect and pack wheat, corn and rice straw that can be used for breeding industry and biomass power generation.
2. Mechanization requirements can be met in the plains and half slope. More than 95% of the machine parts are produced by our own factory, so we can completely control the quality of the product
3.Mini round baler is widely used in picking up hay,straw,alfalfa ,wheat ,rice ,then bale them into round size. Round baler is driven by tractor PTO,easy to transport.


round baler is widely used in picking up hay,straw,alfalfa ,wheat ,rice ,then bale them into round size. Round baler is driven by tractor PTO,easy to transport


Model 850 870/870F 1070/1070F 1090/1090F
Pickup Width 700mm 800mm 950mm 950mm
115*130*120cm 131*167*156cm 131*167*156cm 157*167*170cm
Baler Size
50*70cm 60*70cm 62*95cm 80*95cm
Efficiency 2-5km/h 2-5km/h 3-8km/h 3-8km/h
Productivity 80bales/h 80bales/h 80bales/h 80bales/h
Density ≥115kg/m3 ≥115kg/m3 ≥115kg/m3 ≥115kg/m3
PTO Speed 540r/s 540r/s 540r/s 540r/s
Match Power 25-50hp 25-50hp 25-50hp 25-50hp
Weight 400kg 450kg 550kg 600kg
Force Feeding / 870F have 1070F have 1090F have


Contrast Common Baler Guoan Baler
Pickup system When common pickup system pick the wet corn stalk, it can lead to plugging Our new Force Feeding model solve this problem
Molding roller Common machine roller is made of welding, welding parts easy to fall off when it working ,the equipment and the operator has hidden a huge safety trouble. Our equipment is made of a stamping forming technology, is not easy to wear and tear, no hidden dangers.
Automatic senoloid valve Common machine is semiautomatic to release the bale, solenoid valve also will rust,etc Our latest automatic solenoid valve can automatically put the bale, and the main material is aluminum alloy, not easy to rust.
Sealed bearing Common equipment use no seal or single sealed bearing, poor sealing effect, easy to dust, life is short, and easily damaged. All parts are made of double sealed bearing, bearing using time is longer, equipment operation effect is better.
High strength chain Common chain is rough and thinner, not wear-resisting, easy to fracture. Our chain adopt high quality alloy, it is not easy to fracture, long life, good transmission effect.

1.automatic baling and automatic release the bale
2.a molding roller, safe and durable
3.low fault rate and not blocked
4.it can be connected to small, low-power tractors.
5.it can be used in places with steep slopes and where access is limited to narrow passageways.
6.it can produce small bales that can be carried manually.

Main Features:

Force feeding system : it won’t produce congestion. At the same time, it can pick up hay for comb; make hay baling orderly and higher density, easy storage and transportation.
Automatic baling system: Our latest automatic solenoid valve can automatically put the bale, and the main material is aluminium alloy, not easy to rust, it can use for many years.
Molding roller:Our equipment is made of a forming technology, is not easy to wear and tear, no hidden dangers.


1.3 point linkage, easy to lift and pass from 1 place to another place
2.High efficiency, make the picking and bundling up at 1 time.
3.buzzer warning after 1 bale finished,bale density adjustable.
4.natural hemp twine, harmless to animal.
5.Each bale weights about 25kg,one hour can bale about 80-120 bales.
6.Our baler can use tractor hydraulic system or hydraulic pump on itself, these are optional.

Our Service:

1. We will let you know the machine production processing.After the machine was finished, we will send you the machine pictures, the shipping date, the how many days will arrive yor port. And before arriving, i will inform you all of information about the machine.

2. We have professional production department, shipping department, so as to improve our delivery speed, ensure timely delivery.

3. Warranty: 24 months warranty, if problem caused by quality factor, we will send you free spare parts by air within 1 week.

4. Third party: Each machine was tested before shipping, we allow third-party to test the machine and factory before shipping.

5. In use prcessing, if you have any questions, please call me or email me, we will help you timely.


1. Q: Which machines can be used to move your round balers?
A:Our round balers can be adapted to any brand and model,towed by 20-50 horse power tractors.

2. Q: is it easy to operate?

A: yes. only need match the 3 point hitch and PTO.

3. Q: how to know the chamber is full with grass/straw?

A: there is buzzer. it will ring when the chamber is full.

by the way, when the buzzer rings, tractor should be stoped awaiting the twine binding on bales.

otherwise the shear bolt on pickup device will be cut off.

4. Q: does the baler discharge bales automatically?

A: no. this is only step that you need do by hand.

5. Q: can this baler pick up materials such as whole corn stalk?

A: Theoretically, it can’t. because the baler haven’t chopper device.

but, we have tested it in field for cut stalk by the combine harvester.

6. Q: if i use the baler to pick up wheat straw, is it suitable?

A: yes. the straw is better not cut into pieces by harvester,

however, it works also for cut straw. the problem is the loss rate will be about 20%.

7. Q: weight of bales?

A: if dry hay and straw,9YKD-90 50kg

Our company can provide machines for your any time.

For more questions, please send inquiry to us!


Company Information:

1.We are Manufacturer for agriculture machinery process machinery
2.Alibaba Assessed Gold Supplier.
3.Inspected by the Inspection Institution of Bureau Veritas Certification.
4.100% QC inspection Before Shipment.
5.Best Quality & Best Service with Competitive price.

HangZhou Guoan Engineering Machinery Co.,Ltd founded in 2006,is a conprehensive technology company integrating scientific research,production,sales and sevices;we posses the fixed assets of more than 80 millions,and 161 employees including 23 senior research personnel.The aboundant capital and strong R&D(research and development)provide the power to the sustainable development of the company.
Our company is formerly known as HangZhou HangZhou Fine Casting Factory,established in1996,produced mainly the agricultural equipment for CZPT Lovol.From 2006 to 2016,we passed every year the ISO,9001 quality systerm certification by ZJQC.20 years of experience of mechanical development and production guarantee strongly the quality of production.Since 2012,our company independently developed and produced 9YKD-60 series round baler,rice chopper and other products.Our company is set in HangZhou-the beautiful international city of kite,located in northwest corner of Xihu (West Lake) Dis.an middle rode and Xiangting street intersection,close to the HangZhou entrance of JIQing highway G20,with advantageous ebvironment and convenient transportation.
We have the first class quality and service,weicome all the new and old customers to visit our factory and negitiate the cooperation.



Packing & Shipping:

Model Packing Size 20FT
850 115*115*115cm 20 units
870&870F 115*130*115cm 16 units
1070&1070F 130*138*120cm 8 units
1090&1090F 157*167*170cm 4 units
HOW TO PACKING AND DELIVER By iron crate package
Shipped in 15 days after payment

Sending Inquiry Information:

1.Delivery time: Within 15days after receiving clients’ payment
2.Payment Terms :T/T/L/C/paypal /trade assurance
3.Quality Gurantee: Quality gurantee term is for 1 years, Malfunctions which are caused by operation mistakely will be reponsible for customers.
4.We Supply 24 hours online service, if you have any questions on Mini Round Hay Baler and other farm machinery, do not hesitate to connect with us!
5.Gald to service for you And Welcome to contact us for more details!

If u like our Mini round baler or other kinds machines , please feel free to contact Miss Lucky , I will reply u ASAP . Best regards! Looking forward to your kind inquiry!

Worm Gear Motors

Worm gear motors are often preferred for quieter operation because of the smooth sliding motion of the worm shaft. Unlike gear motors with teeth, which may click as the worm turns, worm gear motors can be installed in a quiet area. In this article, we will talk about the CZPT whirling process and the various types of worms available. We’ll also discuss the benefits of worm gear motors and worm wheel.
worm shaft

worm gear

In the case of a worm gear, the axial pitch of the ring pinion of the corresponding revolving worm is equal to the circular pitch of the mating revolving pinion of the worm gear. A worm with 1 start is known as a worm with a lead. This leads to a smaller worm wheel. Worms can work in tight spaces because of their small profile.
Generally, a worm gear has high efficiency, but there are a few disadvantages. Worm gears are not recommended for high-heat applications because of their high level of rubbing. A full-fluid lubricant film and the low wear level of the gear reduce friction and wear. Worm gears also have a lower wear rate than a standard gear. The worm shaft and worm gear is also more efficient than a standard gear.
The worm gear shaft is cradled within a self-aligning bearing block that is attached to the gearbox casing. The eccentric housing has radial bearings on both ends, enabling it to engage with the worm gear wheel. The drive is transferred to the worm gear shaft through bevel gears 13A, 1 fixed at the ends of the worm gear shaft and the other in the center of the cross-shaft.

worm wheel

In a worm gearbox, the pinion or worm gear is centered between a geared cylinder and a worm shaft. The worm gear shaft is supported at either end by a radial thrust bearing. A gearbox’s cross-shaft is fixed to a suitable drive means and pivotally attached to the worm wheel. The input drive is transferred to the worm gear shaft 10 through bevel gears 13A, 1 of which is fixed to the end of the worm gear shaft and the other at the centre of the cross-shaft.
Worms and worm wheels are available in several materials. The worm wheel is made of bronze alloy, aluminum, or steel. Aluminum bronze worm wheels are a good choice for high-speed applications. Cast iron worm wheels are cheap and suitable for light loads. MC nylon worm wheels are highly wear-resistant and machinable. Aluminum bronze worm wheels are available and are good for applications with severe wear conditions.
When designing a worm wheel, it is vital to determine the correct lubricant for the worm shaft and a corresponding worm wheel. A suitable lubricant should have a kinematic viscosity of 300 mm2/s and be used for worm wheel sleeve bearings. The worm wheel and worm shaft should be properly lubricated to ensure their longevity.

Multi-start worms

A multi-start worm gear screw jack combines the benefits of multiple starts with linear output speeds. The multi-start worm shaft reduces the effects of single start worms and large ratio gears. Both types of worm gears have a reversible worm that can be reversed or stopped by hand, depending on the application. The worm gear’s self-locking ability depends on the lead angle, pressure angle, and friction coefficient.
A single-start worm has a single thread running the length of its shaft. The worm advances 1 tooth per revolution. A multi-start worm has multiple threads in each of its threads. The gear reduction on a multi-start worm is equal to the number of teeth on the gear minus the number of starts on the worm shaft. In general, a multi-start worm has 2 or 3 threads.
Worm gears can be quieter than other types of gears because the worm shaft glides rather than clicking. This makes them an excellent choice for applications where noise is a concern. Worm gears can be made of softer material, making them more noise-tolerant. In addition, they can withstand shock loads. Compared to gears with toothed teeth, worm gears have a lower noise and vibration rate.
worm shaft

CZPT whirling process

The CZPT whirling process for worm shafts raises the bar for precision gear machining in small to medium production volumes. The CZPT whirling process reduces thread rolling, increases worm quality, and offers reduced cycle times. The CZPT LWN-90 whirling machine features a steel bed, programmable force tailstock, and five-axis interpolation for increased accuracy and quality.
Its 4,000-rpm, 5-kW whirling spindle produces worms and various types of screws. Its outer diameters are up to 2.5 inches, while its length is up to 20 inches. Its dry-cutting process uses a vortex tube to deliver chilled compressed air to the cutting point. Oil is also added to the mixture. The worm shafts produced are free of undercuts, reducing the amount of machining required.
Induction hardening is a process that takes advantage of the whirling process. The induction hardening process utilizes alternating current (AC) to cause eddy currents in metallic objects. The higher the frequency, the higher the surface temperature. The electrical frequency is monitored through sensors to prevent overheating. Induction heating is programmable so that only certain parts of the worm shaft will harden.

Common tangent at an arbitrary point on both surfaces of the worm wheel

A worm gear consists of 2 helical segments with a helix angle equal to 90 degrees. This shape allows the worm to rotate with more than 1 tooth per rotation. A worm’s helix angle is usually close to 90 degrees and the body length is fairly long in the axial direction. A worm gear with a lead angle g has similar properties as a screw gear with a helix angle of 90 degrees.
The axial cross section of a worm gear is not conventionally trapezoidal. Instead, the linear part of the oblique side is replaced by cycloid curves. These curves have a common tangent near the pitch line. The worm wheel is then formed by gear cutting, resulting in a gear with 2 meshing surfaces. This worm gear can rotate at high speeds and still operate quietly.
A worm wheel with a cycloid pitch is a more efficient worm gear. It reduces friction between the worm and the gear, resulting in greater durability, improved operating efficiency, and reduced noise. This pitch line also helps the worm wheel engage more evenly and smoothly. Moreover, it prevents interference with their appearance. It also makes worm wheel and gear engagement smoother.
worm shaft

Calculation of worm shaft deflection

There are several methods for calculating worm shaft deflection, and each method has its own set of disadvantages. These commonly used methods provide good approximations but are inadequate for determining the actual worm shaft deflection. For example, these methods do not account for the geometric modifications to the worm, such as its helical winding of teeth. Furthermore, they overestimate the stiffening effect of the gearing. Hence, efficient thin worm shaft designs require other approaches.
Fortunately, several methods exist to determine the maximum worm shaft deflection. These methods use the finite element method, and include boundary conditions and parameter calculations. Here, we look at a couple of methods. The first method, DIN 3996, calculates the maximum worm shaft deflection based on the test results, while the second one, AGMA 6022, uses the root diameter of the worm as the equivalent bending diameter.
The second method focuses on the basic parameters of worm gearing. We’ll take a closer look at each. We’ll examine worm gearing teeth and the geometric factors that influence them. Commonly, the range of worm gearing teeth is 1 to four, but it can be as large as twelve. Choosing the teeth should depend on optimization requirements, including efficiency and weight. For example, if a worm gearing needs to be smaller than the previous model, then a small number of teeth will suffice.

China high quality Guoan Agricultural Machinery Mini Baler Parts Mini Round Hay Baler Machine for Tractor Use     with Free Design CustomChina high quality Guoan Agricultural Machinery Mini Baler Parts Mini Round Hay Baler Machine for Tractor Use     with Free Design Custom

China Professional Hydraulic Cylinder for Mini Excavator Parts Tractor Loader near me factory

Product Description

HEADLINE Hydraulic Cylinder for Mini Excavator Parts Tractor Loader
PART NAME Hydraulic cylinder
MATERIAL Rod: 40Cr/45#; Tube: 27SiMn/20#; Seals: Kaden/Aston/Parker; Chrom coating: 30-60 micro.
FEATURES 1. Seals kit: Superior quality named-brand seals, durable and hard-wearing with long service life.
2. Heat treatment: Quenching&Tempering, Rod surface hardness: HRC48-54.
3. Cleaning: Ultrasonic cleaning.
4.Rod:Induction hardened prior to chrome plating enhances the surface hardness, improve corrosion resistance and anti-scratch performance.
5.Bushing: Hardened steel bushing or copper bushing.
6.Cap: all caps are made of forged high strength steel.
7.Piston: High pressure piston sealing material. Teflon or nylon seals, High precision machining maximize the consistency of parts
8. Testing: Ultrasonic detector, spectrograph, CMM, metallography, chrome thickness tester.
9. Work Pressure: 7/14/16/21/31.5/ 37.5/63MPa Can be Customized
PRODUCT APPLICATION Including manufacturing engineering machinery, construction, forestry, waste management, mining, material handling, industrial applications, agriculture, manufacturing, transportation, marine applications and oil field equipment.
MOQ 1 Set (It is CZPT to provide a few samples first time)
PACKAGE Standard package.
PAYMENT TERM T/T, Western Union.
DELIEVERY TIME 7-15 Days,Also depands on specific demands
Product Catalog
  Boom cylinder Stick cylinder Bucket cylinder Dozer blade cylinder
PC56-7 707-00-XJ030 707-00-XJ040 707-00-XJ050 707-00-0J060
707-00-0J0301 707-00-0J040 707-00-0J0501 707-11-11A60
Weight 46kg 46kg 29kg 31kg
PC60-7 201-63-X2502 201-63-X2511 201-63-X2520 201-63-57131
707-00-XC891 707-00-XC901 707-00-XC911
Weight 66kg 66kg 66kg 66kg
PC60-8 707-00-XT260 707-00-XT271 707-00-XT280 707-00-0J910
PC70-8 707-00-XT261 707-00-XT270 707-00-XT281
  707-00-0J880 707-00-XJ890 707-00-0J900
  707-00-0J881 707-00-XJ891 707-00-0J901
Weight 88kg 73kg 49kg 48kg
PC110-7 PC220-8 PC200-8M0 PC110-8 PC130-8 PC200-8
PC130-7 PC240-8 PC210-8M0 PC210-8
Boom cylinder
707-01-XS480 707-E1-X1410 707-E1-01670 707-E1-01710 707-01-XS390
707-01-XT610 707-01-0H680 724-Z1-13081 707-13-95150 707-13-10740 707-01-0H580
707-01-XT200 707-01-XS490 707-E1-X1420 707-58-65A20 707-58-70A90 707-01-XS400
Stick cylinder
707-01-XR840 707-E1-X1470 707-E1-01690 707-E1-01690 707-01-XR250
707-01-XT620 707-01-0J840 724-Z1-13131 707-13-11920 707-13-11920 707-01-0J250
707-01-XU530   707-58-75990 707-58-75990  
Bucket cylinder
707-01-XR870 707-E1-X1490 707-E1-01700 707-E1-01740 707-01-XR280
707-01-0F040 707-01-0J870 724-Z1-13165 707-13-90340 707-13-95160 707-01-0J280
707-01-XT631   707-58-60A20 707-58-65A30  
Weight 66kg PC300-8M0 PC400-7 66kg 66kg 66kg
PC220-8M0 PC360-8M0 PC450-7 PC200-7 PC220-7 PC300-7
PC240-8M0 707-F1-X0681 707-01-XT520 PC210-7 PC360-7
Boom cylinder
707-01-XT530 707-01-XZ820 707-01-XX070 707-01-XF391
707-E1-00161 707-01-0G550 707-01-XZ830 707-01-XX080 707-01-XF390
707-G1-X0171   707-01-XA960 707-01-XE550 707-01-XF401
707-E1-00161   707-01-XA970 707-01-XE560 707-01-XF400
    707-01-XA290 707-01-XA350 707-01-0F391
      707-01-XA360 707-01-0F390
Stick cylinder
66kg    707-01-XZ901 707-01-XF461
707-E1-00260 707-F1-X2180 707-01-XM340   707-01-XC121 707-01-XF412
  707-01-0AF80   707-01-XA371 707-01-0F461
  707-01-XAF80     707-01-0F412
Bucket cylinder
707-01-XM420   707-01-XG880 707-01-XF471
707-E1-571 707-H1-X2190 707-01-XM350   707-01-XG491 707-01-XF423
  707-01-0AF90   707-01-XA380 707-01-0F471
  707-01-XM440     707-01-0F423
Weight 66kg 66kg   66kg 66kg

What is a pulley?

Pulleys are shafts or wheels on a shaft that support the movement and change of direction of a taut cable. The pulley also transfers power from the shaft to the cable. A simple pulley is used to raise the school flag. Read on to learn about the basic types of pulleys. We also covered the use of pulleys in everyday life. Read on to learn more about this important mechanical part.

composite pulley

A composite pulley is a mechanical system where 2 or more pulleys and ropes are connected together. It reduces the force required to lift the load because the force is divided by the distance of each pulley. Distance is equal to the mass of the object. Composite pulleys are a common mechanical system on sailboats. Composite pulleys can be used to lift heavy equipment such as sails.
The compound pulley unit consists of 2 pulleys, 1 fixed and the other movable. The fixed pulley is fixed overhead, while the movable pulley is connected to the load by a chain. The lift applies force to the other end of the rope. Anchor points are attached to fixed joists, ceiling joists or sturdy branches. The chain should be long enough to support the load during lifting.
Composite pulleys can be made from a variety of materials. Some are fixed and remain fixed. Others are detachable. The composite pulley combines the advantages of both types, making it a versatile tool. In the table below, these 3 types of pulleys are compared. It’s easy to see which 1 is best for your needs. The right choice depends on your specific needs and budget.
The compound pulley system consists of 2 fixed pulleys and 1 movable pulley. The compound pulley system multiplies the force by a factor of 2. The compound pulley system is particularly suitable for heavy loads and is ideal for construction sites. Workers apply less than half the load force on the composite pulley, significantly reducing the force required. This is a major benefit for many people.

Fixed pulley

Fixed pulleys are fixed gears of fixed length that are mounted on solid objects. There are many different types of pulley systems. Some cooperate with each other, but not “fixed”.
Fixed pulleys can be used for a variety of purposes. One application is to lift small objects. They have a one-to-1 mechanical advantage. Often, a single pulley can lift small loads. The force required to lift a single fixed pulley remains the same. They are usually used to lift lighter objects. They can even be attached to buckets used to draw water from wells.
While single fixed pulleys have desirable mechanical advantages, they are not suitable for force multipliers. Because their mechanical advantage diminishes over time, they are not effective force multipliers. They are used to redirect work so that it can be applied in the most convenient direction. This mechanical advantage is the main advantage of fixed pulleys and the most common way of moving objects. They have several benefits, including the ability to increase the speed of moving objects.
Another application for fixed pulleys is lifting supplies. A scaffold can weigh more than 1 and can be directly hoisted. In order to facilitate the transportation of materials, fixed pulleys are usually installed on the top of the scaffolding on construction sites. Then thread the rope through the edge of the groove that holds the pulley. The fixed pulley exerts the same force on the pull side as on the push side. The same is true for moving objects with fixed pulleys.

moving pulley

A movable pulley is a device whose part is fixed to another object, usually a rod or beam. The movable part moves with the load, making the load feel lighter. This is a useful tool for those who need to carry heavy items such as large bags. The advantages of moving pulleys are many. Here are some of them. Read on to learn more about them.
One of the most common uses of movable pulley systems is climbing high objects. Climbers act as pulley loads and pull ropes to lift objects. Eventually, when the traction stops, the climber descends. However, it is still a useful tool in other situations. The movable pulley system can help you climb the tallest objects or lift them to level surfaces.
Another example of movable pulleys is in industry. Depending on the load, movable pulleys make handling and moving loads easier. You can use them in a variety of applications in manufacturing and industry, including cleaning. For example, the American flag is raised and lowered every day. Removable pulleys are a handy tool when buildings need cleaning.
If you’re not sure whether a task requires a pulley, a zipline might be a good option. Connect the 2 ends of the rope and the pulley will move along the rope, then attach the rope to the metal cable. The load is the person holding the pulley, and the force comes from the attachment on the other end of the rope. There are 2 types of live pulleys: simple pulleys with just 1 wheel and live pulleys with many ropes attached.

School flag raised with simple pulleys

How is the school flag raised? It is pulled up by a rope attached to a pulley at the top of the pole. When the rope is pulled, the pulley turns, raising the flag. A pulley is a simple mechanism that helps people move heavier objects with ease. The rope must be securely attached to the pulley to keep the flag stable.
A simple pulley is a spinning wheel with grooves on 1 side and ropes on the other. The rope can be any length and the wheels can be any size. The rope has to go through the groove and the load is attached to the other end of the rope. Simple pulleys are pulleys with fixed shafts. An example is the wheel on a school flagpole.
A simple pulley system consists of a primary pole, a secondary pole and an outer member. The primary flagpole is connected to the track by a detour, while the secondary flagpole is connected to the track by a pipe. There is a groove on 1 side of the track, which passes through the inner cavity of the flagpole. An open track at the upper end of the track connects the 2 parts of the pulley.
A simple pulley can be used for many purposes. This is a useful machine that can be used to raise the flag. Among other things, it can be used in clothing lines, bird feeders, and even roofers. And, of course, you can use the pulley to raise the flag. Its versatility makes it an essential part of school decor.

cast iron pulley

If you are looking for pulleys for your machine, you may come across cast iron pulleys. They are usually cheap and available in a variety of sizes. The rim is held in place by a mesh attached to a central boss. The arms and spokes can be straight or curved, but most are oval. There are many uses for this type of pulley.
You might wonder why the arms of cast iron pulleys are so curved. Bent arms tend to yield rather than break. Cast iron pulleys are usually round with a slight bump on the rim, which helps keep the belt centered on the rim as it moves. On a 300mm diameter pulley, the bumps may be as small as 9mm.

China Professional Hydraulic Cylinder for Mini Excavator Parts Tractor Loader     near me factory China Professional Hydraulic Cylinder for Mini Excavator Parts Tractor Loader     near me factory

China wholesaler Mini End for Sale Belarus 250as Used for Mtz Tractor Parts Front Loader with Good quality

Product Description

Model ZL-T916
Rated Load volume (kg) 1600
Rated bucket capacity(m3) 0.6
Weight of whole machine(kg) 2800
Type of engine 490
Rated power(kw) 37
Tyre 1490-16
Size of shape(L*W*H)(mm) 4600*1600*2600

ShanYi heavy loader series products,both domestic and international best matching accessories, reliable quality,meets thehumanization requirement.
A: The latest instrument desige with a chronograph makes vehicle information more visible.
B: With double high and low running speed, the low speed torque is twice as high as before and the high speed is 38 kilometers perhour. Greatly improve the efficiency of the entire vehicle.
C: Reinforced frame, the center of gravity distribution is reasonable, strong carrying capacity.
D: Robot automatic welding equipment to ensure the quality of welding, weld neat uniform, solid welding.
E: Spilt type 280 3 element torque converter, fixed shaft power shift transmission, large power, strong climbing abolity,convenient repair, not easy to high temperature, high reliability.


Q1. Are you manufacturer or trader?
A: We are manufacturer of construction machines, agriculture machines and power press machines. Actually, we produce most of the parts in our own factory for better cost and quality control.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages
before you pay the balance.
Q3. What is your terms of delivery?
Q4. How about your delivery time?
A: Generally, it will take 30 days after receiving your advance payment. The specific delivery time depends
on the items and the quantity of your order. Sometimes we have some in stock.
Q5. Are you interested in dealership with local company?
A: Yes, we are quite interested in this business. We’d like to cooperate with some local partner to sell more World machines in local market and supply better service.
Q6. What is your warranty policy?
A: We can supply 1 year warranty for our machines. We will provide parts as free within warranty. We can send engineer to customer place if big quality problem. We can provide internet or calling service at any time.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

What You Need to Know About Ball Screws

A ball screw is a common industrial component used in various applications. Here’s a basic overview of their features, typical applications, and characteristics. You’ll also learn about their maintenance and repair options. Learn more about ball screws today. We’ve got the answers you’ve been looking for. Scroll down for more information. And be sure to check out our blog for future articles! Until then, enjoy browsing! And happy screwing!

Typical applications

Ball screws are threaded shafts with a ball nut attached to them. These screws operate similar to ball bearings in which hardened steel balls travel a channel. Ball screws are usually used in linear-motion applications because of their high efficiency, load capacity, and positioning accuracy. Although these screws are similar in design to conventional lead screws, ball screws offer some distinct advantages. For example, ball screws are often used in machine tools, step photolithography machines, and microscopic integrated circuits.
For example, the use of larger balls reduces backlash in ball screws by reducing friction between the balls and the grooves. Ball screws can be preloaded using a spring or spacer between 2 ball nuts or a lead with a spherical offset. However, this method requires higher torque and can lead to excessive heat generation. It’s important to consider the size of preload before using a ball screw in a particular application.
Although the ball screws are highly durable, they are not without their disadvantages. For example, their metal-on-metal nature makes them louder than lead screw nuts. For these reasons, proper preloading is vital. Ball screws also have a very low friction coefficient. Ball screws are ideal for applications where backlash is of critical importance, such as wire bonding. A ball screw is the perfect solution for many applications that require precise motion.
Although ball screws are used in a wide variety of applications, they often are exposed to various types of contaminants. Dust, chips, and liquids can interfere with proper lubrication and shorten the lifespan of the ball screw assembly. Ultimately, these contaminants can lead to catastrophic failure of the assembly. They are also prone to abrasive wear and tear. To combat this, it’s important to lubricate your ball screws frequently.


The accuracy of a ball screw is 1 of its primary characteristics, so choosing the correct grade is critical. A ball screw with a C5 accuracy grade is typically used in machining centers, while a C3 or even a C1 screw might be needed for image processing or inspection equipment. Ball screw hardness is also an important consideration, as differences in the Ct and C grades will affect their accuracy. Ultimately, the higher the quality of the ball, the longer its life expectancy.
Numerous studies have been conducted to understand the mechanics of ball screw mechanisms. Cuttino et al. studied the nonlinear torque characteristics of ball screws. Then, by calculating the distribution of loads in all balls, they analyzed the load on the screw shaft and the ball screw.
CZPT has decades of experience in the design and production of ball screws for industrial use. With close to 50 years of know-how, this company is able to respond to a highly-complex market and develop new solutions. Their ball screw ranges range from basic to high-precision. Moreover, they can provide dedicated solutions for specific applications, ensuring the highest quality under all circumstances. And they can meet specific customer needs and requirements thanks to their extensive research and development.
A ball screw must be properly mounted. Improper mounting results in noise and vibration, accelerated wear, and material failure. Also, installed auxiliary components must be checked for faults. And, since ball screw mechanisms are often multi-stage, there are different types of ball screw mechanisms. There are 2 basic types: internal and external recirculation systems. There are many differences between the 2 types, but these 2 types have some fundamental similarities.


Ball screw maintenance can be done easily if you know the symptoms of a deteriorating ball screw. Several signs of deterioration can be detected during regular inspections: excessive vibrations, discoloration, and misalignment of the screw. If the screw is accompanied by excessive noises, there could be a bent screw shaft or misaligned bearing housings. Excessive buildup can also cause clicking noises. If you notice excessive noises from the screw, the return tube has probably been damaged or is broken. Other common symptoms include loss of positioning accuracy due to endplay in support bearings and excessive power consumption.
Another sign of a malfunctioning ball screw is noise, but if you can identify the problem before it occurs, you can flush it. A proper flush can solve any noise or extend the life of the ball screw assembly. Moreover, flushing the assembly can also reveal if the bearings are damaged or galled. If the bearings are broken, you can replace them with new ones. You can also contact a professional to perform PM for ball screw assembly.
A ball screw manufacturer recommends periodic lubrication to maximize uptime. In fact, ball screws are pre-lubricated at the factory, but periodic attention to lubrication is advisable. In addition, the lubrication reservoir must be designed to minimize the loss of lubricant. Finally, the wiper system must be designed to maximize wear protection. It is important to have a wiper system that is capable of sealing the nut and the screw shaft.
To choose a company for your ball screw maintenance, it is important to check their qualifications. The company must have a long-term track record in the servicing of different types of ball screws. Their customer service should include free evaluation. Additionally, the company should offer 3 services: reload, recondition, and replacement. Reload requires cleaning and polishing, reconditioning requires regrinding the ball nut, and replacement means replacing the screw with a new one. If you need a ball screw repair, it is best to contact a professional.

Repair options

A damaged ball screw can shut down a manufacturing line unless the component is repaired quickly. Fortunately, there are several options for repair, including rebuilding, reconditioning, and replacement. Reconditioning and replacement involve remanufacturing the ball screw and ball nut, but both options require new parts. Choosing the best option for your ball screw will depend on how much damage it has suffered and the amount of money it will cost.
In most cases, ball screw repairs can be done on rolled and ground screw types. The process involves eutectic spraying and grinding the screw back to size. Among the 3 repair options, level 4 repair is the most expensive, but it can bring back the lifespan of the screw. Depending on the severity of damage, AB Linear may recommend level 3 repair to repair damaged ball screws. The following process will restore the screw to good working condition.
First, inspect the ball screw for signs of damage. If the ball screw is making unusual noises or vibrations, replace any worn seals or wipers. Discoloration of the ball nut or lead can indicate an inadequate lubrication. Damaged lube lines can also be the cause of a ball screw failure. Repairing these issues is often a cheaper option than purchasing new. By choosing to repair the component instead of replacing it, you will be saving up to 70% of the cost of a replacement ball screw.
If you do experience problems with your ball screw, the best option is to repair it. The cost of replacing a ball screw is prohibitively high, and it can be difficult to find a qualified repair company that specializes in repairing ball screws. A qualified company can repair the ball screw for a small fee. Regardless of the type of screw, it’s always a good idea to seek qualified assistance if it is experiencing any of these problems.

Application in steering systems

The conventional ball screw device is lacking a device to minimize noise and vibration. Both of these factors contribute to reduced performance and durability of a vehicle. The present invention overcomes these shortcomings. A ball screw device with a lower noise and vibration coefficient increases the durability and performance of a vehicle. In addition, it is easier to install and remove than the conventional version. Listed below are some advantages of ball screws in steering systems.
A ball screw is an important component of an automobile’s power steering system. This type of steering system requires a relatively low level of positional repeatability and precision. The screw is rotated by steering wheel motion and a ball nut engages with a Pitman arm. This arm is the primary linkage between the power steering box and the center link. By virtue of its low-cost and high-performance capabilities, ball screws are a desirable choice in many different automotive steering systems.
A ball screw device can be used in any electric power steering system. The shaft of the ball screw is threaded, and a ball nut is installed at its end. The screw includes a damper to reduce noise and vibration. The ball screw is often coupled with a power steering pump and electric motor to control the torque. In the present invention, the ball screw device incorporates a damper. This damper can increase the durability of the ball screw device.
As a leader in the manufacturing of ball screws, CZPT has been in the aerospace industry for decades. Its extensive experience and specialized expertise allows it to meet the diverse needs of the steering system market. Using this technology, CZPT offers a variety of solutions for this complex application. They can provide better positioning accuracy, higher durability and better control. So, if you’re in need of a ball screw in your steering system, contact CZPT today!

China wholesaler Mini End for Sale Belarus 250as Used for Mtz Tractor Parts Front Loader     with Good qualityChina wholesaler Mini End for Sale Belarus 250as Used for Mtz Tractor Parts Front Loader     with Good quality

China Standard Factory Direct Sale 20HP Farm Mini Compact Tractor with Small Tractor Parts for Agricultural Machine with Good quality

Product Description

Product Description

   This series of mini tractor is a new gengeration of small 4 wheel tractors developed by our company on the basis of the general series of tractors,andhas been developed with the international standard.
   The utility model has the characteristics and consumption,low fuel consumption ,many grades of operation,good matching performance and convenient maintenance.This series of matching engines are the same as ordinary series, but the operation ability is more powerful and the scope of  application is more wide. It is the more advanced model in world at present

    Mini tractor basic configuration: single cylinder engine, horsepower: 12HP-35HP optional.  Belt transfer, 2WD.  With front and rear hydraulic pressure.  Can also options rear PTO drive system.  Double way valve, can match all kinds of farm tools  

Detailed Photos


Can match a variety of farm tools, suitable for a variety of working environment

Scissor mower

Disc mower

Corn seeder

Double plough

Turnover plough

Rotary tiller




Spiketooth harrow


Film mulching with spraying

Model and Parameters
mini tractors can be equipped with 12hp and 15hp and 18hp and 20hp and 25HP and 30HP and 35HP engines too .



1,Mini tractor characteristics

-large power.
-low fuel consumption.
-more save manpower.
-more shift gears.
-good matched performance .
-convenient operation and maintaince.




2,Mini tractor parameters

-Gearbox casing:Special steel casting box
-Wheel base (mm):1200mm
-Tread:Front wheel:850, Rear wheel:800mm
-Min. ground clearance:210mm
-Turning round radius :2m
-Structure Weight:542kg






3, Mini tractor basic configuration

-Condensing diesel engine with electric starter,
-2*2 wheel tractor,
-half frame,
-belt transmission,
-hydraulic lift,
-dry dual clutch,
-mechanical steering wheel,
-common hood,
-500-12/650-16 tire.
—can choose according to the price list 


Packaging & Shipping


Company Information:

Telake (HangZhou) Agricultural equipment Co., Ltd. mainly produces medium and large horsepower wheeled tractors and supporting various agricultural machinery and tools.  The main products of the company cover all kinds of wheeled tractors with 25 horsepower to 260 horsepower, and the corresponding agricultural machinery and tools. At present, the products are sold all over the country and more than 10 countries and regions abroad. Among them, the medium-horsepower wheeled tractors are in the leading position in the industry in terms of technology and quality.  The company has strong technical force, strong development ability, perfect detection means and complete post-sale service system.


1. Free tool box and free easy damage parts. 

2. Warranty time: 18 months after the goods delivery your port. 

3. Delivery time: 20 days for 1 container. 

4.10 units in 1 20FT container. 40units in 1 40FT container. 

5. Every color we can do for you. 

6. We can do the tractor with your logo in your order. (It Is Free)

7. Payment term: T/T30% in advance, 70% T/T after the shipping, or L/C at sight. 



Analytical Approaches to Estimating Contact Pressures in Spline Couplings

A spline coupling is a type of mechanical connection between 2 rotating shafts. It consists of 2 parts – a coupler and a coupling. Both parts have teeth which engage and transfer loads. However, spline couplings are typically over-dimensioned, which makes them susceptible to fatigue and static behavior. Wear phenomena can also cause the coupling to fail. For this reason, proper spline coupling design is essential for achieving optimum performance.

Modeling a spline coupling

Spline couplings are becoming increasingly popular in the aerospace industry, but they operate in a slightly misaligned state, causing both vibrations and damage to the contact surfaces. To solve this problem, this article offers analytical approaches for estimating the contact pressures in a spline coupling. Specifically, this article compares analytical approaches with pure numerical approaches to demonstrate the benefits of an analytical approach.
To model a spline coupling, first you create the knowledge base for the spline coupling. The knowledge base includes a large number of possible specification values, which are related to each other. If you modify 1 specification, it may lead to a warning for violating another. To make the design valid, you must create a spline coupling model that meets the specified specification values.
After you have modeled the geometry, you must enter the contact pressures of the 2 spline couplings. Then, you need to determine the position of the pitch circle of the spline. In Figure 2, the centre of the male coupling is superposed to that of the female spline. Then, you need to make sure that the alignment meshing distance of the 2 splines is the same.
Once you have the data you need to create a spline coupling model, you can begin by entering the specifications for the interface design. Once you have this data, you need to choose whether to optimize the internal spline or the external spline. You’ll also need to specify the tooth friction coefficient, which is used to determine the stresses in the spline coupling model 20. You should also enter the pilot clearance, which is the clearance between the tip 186 of a tooth 32 on 1 spline and the feature on the mating spline.
After you have entered the desired specifications for the external spline, you can enter the parameters for the internal spline. For example, you can enter the outer diameter limit 154 of the major snap 54 and the minor snap 56 of the internal spline. The values of these parameters are displayed in color-coded boxes on the Spline Inputs and Configuration GUI screen 80. Once the parameters are entered, you’ll be presented with a geometric representation of the spline coupling model 20.

Creating a spline coupling model 20

The spline coupling model 20 is created by a product model software program 10. The software validates the spline coupling model against a knowledge base of configuration-dependent specification constraints and relationships. This report is then input to the ANSYS stress analyzer program. It lists the spline coupling model 20’s geometric configurations and specification values for each feature. The spline coupling model 20 is automatically recreated every time the configuration or performance specifications of the spline coupling model 20 are modified.
The spline coupling model 20 can be configured using the product model software program 10. A user specifies the axial length of the spline stack, which may be zero, or a fixed length. The user also enters a radial mating face 148, if any, and selects a pilot clearance specification value of 14.5 degrees or 30 degrees.
A user can then use the mouse 110 to modify the spline coupling model 20. The spline coupling knowledge base contains a large number of possible specification values and the spline coupling design rule. If the user tries to change a spline coupling model, the model will show a warning about a violation of another specification. In some cases, the modification may invalidate the design.
In the spline coupling model 20, the user enters additional performance requirement specifications. The user chooses the locations where maximum torque is transferred for the internal and external splines 38 and 40. The maximum torque transfer location is determined by the attachment configuration of the hardware to the shafts. Once this is selected, the user can click “Next” to save the model. A preview of the spline coupling model 20 is displayed.
The model 20 is a representation of a spline coupling. The spline specifications are entered in the order and arrangement as specified on the spline coupling model 20 GUI screen. Once the spline coupling specifications are entered, the product model software program 10 will incorporate them into the spline coupling model 20. This is the last step in spline coupling model creation.

Analysing a spline coupling model 20

An analysis of a spline coupling model consists of inputting its configuration and performance specifications. These specifications may be generated from another computer program. The product model software program 10 then uses its internal knowledge base of configuration dependent specification relationships and constraints to create a valid three-dimensional parametric model 20. This model contains information describing the number and types of spline teeth 32, snaps 34, and shoulder 36.
When you are analysing a spline coupling, the software program 10 will include default values for various specifications. The spline coupling model 20 comprises an internal spline 38 and an external spline 40. Each of the splines includes its own set of parameters, such as its depth, width, length, and radii. The external spline 40 will also contain its own set of parameters, such as its orientation.
Upon selecting these parameters, the software program will perform various analyses on the spline coupling model 20. The software program 10 calculates the nominal and maximal tooth bearing stresses and fatigue life of a spline coupling. It will also determine the difference in torsional windup between an internal and an external spline. The output file from the analysis will be a report file containing model configuration and specification data. The output file may also be used by other computer programs for further analysis.
Once these parameters are set, the user enters the design criteria for the spline coupling model 20. In this step, the user specifies the locations of maximum torque transfer for both the external and internal spline 38. The maximum torque transfer location depends on the configuration of the hardware attached to the shafts. The user may enter up to 4 different performance requirement specifications for each spline.
The results of the analysis show that there are 2 phases of spline coupling. The first phase shows a large increase in stress and vibration. The second phase shows a decline in both stress and vibration levels. The third stage shows a constant meshing force between 300N and 320N. This behavior continues for a longer period of time, until the final stage engages with the surface.

Misalignment of a spline coupling

A study aimed to investigate the position of the resultant contact force in a spline coupling engaging teeth under a steady torque and rotating misalignment. The study used numerical methods based on Finite Element Method (FEM) models. It produced numerical results for nominal conditions and parallel offset misalignment. The study considered 2 levels of misalignment – 0.02 mm and 0.08 mm – with different loading levels.
The results showed that the misalignment between the splines and rotors causes a change in the meshing force of the spline-rotor coupling system. Its dynamics is governed by the meshing force of splines. The meshing force of a misaligned spline coupling is related to the rotor-spline coupling system parameters, the transmitting torque, and the dynamic vibration displacement.
Despite the lack of precise measurements, the misalignment of splines is a common problem. This problem is compounded by the fact that splines usually feature backlash. This backlash is the result of the misaligned spline. The authors analyzed several splines, varying pitch diameters, and length/diameter ratios.
A spline coupling is a two-dimensional mechanical system, which has positive backlash. The spline coupling is comprised of a hub and shaft, and has tip-to-root clearances that are larger than the backlash. A form-clearance is sufficient to prevent tip-to-root fillet contact. The torque on the splines is transmitted via friction.
When a spline coupling is misaligned, a torque-biased thrust force is generated. In such a situation, the force can exceed the torque, causing the component to lose its alignment. The two-way transmission of torque and thrust is modeled analytically in the present study. The analytical approach provides solutions that can be integrated into the design process. So, the next time you are faced with a misaligned spline coupling problem, make sure to use an analytical approach!
In this study, the spline coupling is analyzed under nominal conditions without a parallel offset misalignment. The stiffness values obtained are the percentage difference between the nominal pitch diameter and load application diameter. Moreover, the maximum percentage difference in the measured pitch diameter is 1.60% under a torque of 5000 N*m. The other parameter, the pitch angle, is taken into consideration in the calculation.

China Standard Factory Direct Sale 20HP Farm Mini Compact Tractor with Small Tractor Parts for Agricultural Machine     with Good qualityChina Standard Factory Direct Sale 20HP Farm Mini Compact Tractor with Small Tractor Parts for Agricultural Machine     with Good quality